高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (12): 1984.

• 研究论文 • 上一篇    下一篇

LiNi1-xAlxO2(x=0～1.0)固溶体结构的XRD研究

宫杰1,2, 王春忠1, 宗占国2, 陈岗1   

  1. 1. 吉林大学材料科学系, 长春 130023;
    2. 四平师范学院物理系, 四平 136000
  • 收稿日期:2001-05-21 出版日期:2001-12-24 发布日期:2001-12-24
  • 通讯作者: 宫　杰(1964年出生),男,副教授,从事无机功能材料物理研究.
  • 基金资助:

    国家自然科学基金(批准号:19774028)资助

Structural Study of LiNi1-xAlxO2(x=0-1.0) Solid Solution via X-ray Diffraction

GONG Jie1,2, WANG Chun Zhong1, ZONG Zhan Guo2, CHEN Gang1   

  1. 1. Department of Materials Science, Jilin University, Changchun 130023, China;
    2. Department of Physics, Siping Normal College, Siping 136000, China
  • Received:2001-05-21 Online:2001-12-24 Published:2001-12-24

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摘要： 利用溶胶凝胶法制备了新型锂离子二次电池正极材料LiNi1-xAlxO2(x=0,0.1～1.0)固溶体,X射线衍射结果表明,在0≤x≤1范围内,材料均为具有α-NaFeO2型结构的LiNi1-xAlxO2固溶体单相.随着Al固溶量的增加,晶胞参数发生变化,a轴缩短,c/a比增大,晶胞体积V0减小,材料的层状属性更加明显.

关键词: 固溶体, &alpha, -NaFeO2型结构, XRD

Abstract: This paper covers the results of structural study of solid solution of LiNi 1-x Alx O2( x=0-10) via Xray diffraction. It is observed that the single phase solid solution with α NaFeO2 structure is formed for the whole concentration range(0≤x≤1). Lattice parameter, a decreased, c/a increased, and cell volume decreased with the increasing of Al concentration. The layered characteristics becomes more and more strong with the increasing of Al concentration.

Key words: Solid solution, &alpha, NaFeO2 structure, XRD

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